provided, however, that if the measure of damages provided in
 clauses (i)-(v) above is inadequate to place Lessor in the
 same economic position, on an After-Tax Basis, as Lessor would
 have been in if Lessee had timely performed each of its
 obligations under this Agreement, then Lessor shall be
 entitled to recover as damages such additional amount, giving
 due credit for payments or proceeds of dispositions of the
 Aircraft, as is necessary to place Lessor in such economic
 position; and/or

 (d) either:

 (i) enter upon the premises where all or any part of the
 Aircraft and/or any Engine is located and take immediate
 possession of and, at Lessor's sole option, remove the
 same, all without liability accruing to Lessor for or by
 reason of such entry or taking of possession whether for
 the restoration of damage to property, conversion or
 otherwise, caused by such entry or taking, except
 damages caused by Lessor's gross negligence or willful
 misconduct; or

 (ii) by delivering notice to Lessee, require Lessee to
 redeliver the Aircraft and/or any Engine to Lessor at
 the Redelivery Location on the date specified in such
 notice and in all respects in the condition required by
 this Agreement upon the return pursuant to Clause 12 (it
 being understood that Lessee shall not delay any such
 return for the purpose of placing the Aircraft and/or
 any Engine in such condition, but shall nevertheless be
 liable to Lessor for the failure of the Aircraft and/or
 any Engine to be in such condition); and/or